Davy Knot

Terminal Connection beginner ~75% Strength

Quick Answer

To tie a Davy Knot, pass the line through the hook eye, form a loose loop, pass the tag end through the loop and around the standing line, then pull tight. It is the fastest fishing knot to tie and retains about 80% line strength.

The Davy Knot is attributed to Davy Wotton, a renowned Welsh fly fishing competitor who needed a knot he could tie in seconds during timed tournament conditions without sacrificing a reliable connection. The result is one of the simplest and fastest knots in all of fishing — a single overhand loop with a tuck that cinches into an incredibly small, clean profile at the hook eye. Fly anglers love it because the tiny finished knot doesn’t disrupt the drift or presentation of a delicate dry fly, nymph, or emerger. While it trades some raw strength for speed and compactness, its roughly 75% line strength is more than adequate for the light tippets commonly used in trout, panfish, and small stream fly fishing where quick fly changes are part of the game.

How to Tie a Davy Knot

  1. Thread the hook eye. Pass 3 to 4 inches of tippet through the hook eye from front to back. You don’t need much working line — the Davy Knot is one of the most material-efficient knots in fishing.

  2. Form a loose loop. Bring the tag end over the standing line to create a simple open loop in front of the hook eye. The tag end should cross over the top of the standing line.

  3. Tuck the tag through the loop. Pass the tag end between the standing line and the hook eye, then thread it back through the open loop you just created. The tag end should now exit the loop on the same side it entered.

  4. Pull the standing line to close. Moisten the knot and slowly pull the standing line away from the hook. The loop will collapse and cinch down against the hook eye, trapping the tag end in a tight, compact knot.

  5. Seat and trim closely. Give the standing line a firm pull to fully seat the knot against the eye. The finished knot should be very small — barely larger than the hook eye itself. Trim the tag end as close as possible for the cleanest presentation.

When to Use the Davy Knot

The Davy Knot is purpose-built for fly fishing situations where speed and presentation matter more than maximum brute strength. It’s perfect for trout fishing with light tippets in the 3X to 7X range, where you might change flies dozens of times in a single outing and a fast knot saves valuable fishing time. The small profile makes it outstanding for dry fly fishing, where a bulky knot at the eye can cause drag or an unnatural drift. It’s equally useful for nymph fishing, wet flies, and small streamers. Competition fly anglers often use the Davy Knot exclusively because they can tie it in under five seconds with practice. Outside of fly fishing, it works for ultralight spinning with small jigs and micro lures on light monofilament.

Pro Tips

  • Practice until it’s automatic. The Davy Knot’s biggest advantage is speed, but only if you can tie it without thinking. Practice at home until you can tie it in five seconds or less — that’s when it truly pays off on the water.
  • Use the Double Davy for extra security. If you want more strength, tie a Double Davy by making one additional tuck through the loop before tightening. This bumps strength to roughly 80-85% while keeping the profile small.
  • Trim the tag flush. The tiny profile of this knot is its key feature for presentation. A long tag end defeats the purpose. Use nippers to clip as close to the knot as possible.
  • Seat it gently on fine tippet. On 6X and 7X tippet, the Davy Knot can break during tightening if you pull too aggressively. Use smooth, steady tension rather than a hard snap to seat the knot.

Pros and Cons

Pros:

  • Exceptionally fast to tie — under 5 seconds with practice, ideal for frequent fly changes
  • Produces the smallest, most compact knot profile of virtually any terminal connection
  • Uses very little tippet material, conserving leader length over many fly changes
  • Clean presentation that doesn’t interfere with the drift of dry flies or small nymphs

Cons:

  • Lower strength (~75%) than most other terminal knots, not suited for heavy fish or strong currents
  • Not appropriate for heavy line, braided line, or large saltwater applications
  • The simplicity of the knot means there’s little margin for error — a sloppy tie fails quickly
  • Some anglers find it difficult to tie with cold, wet hands because there’s very little material to grip